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55054637911 = 721386428003
BaseRepresentation
bin110011010001100000…
…110001101101010111
312021002212000101022101
4303101200301231113
51400222441403121
641143003542531
73656206462300
oct632140615527
9167085011271
1055054637911
11213919a9359
12a80582aa47
13526501ba30
142943b757a7
1516734e0491
hexcd1831b57

55054637911 has 12 divisors (see below), whose sum is σ = 68969547192. Its totient is φ = 43559713008.

The previous prime is 55054637879. The next prime is 55054637941. The reversal of 55054637911 is 11973645055.

55054637911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55054637911 - 25 = 55054637879 is a prime.

It is a super-2 number, since 2×550546379112 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55054637941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43213365 + ... + 43214638.

It is an arithmetic number, because the mean of its divisors is an integer number (5747462266).

Almost surely, 255054637911 is an apocalyptic number.

55054637911 is a deficient number, since it is larger than the sum of its proper divisors (13914909281).

55054637911 is a wasteful number, since it uses less digits than its factorization.

55054637911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86428030 (or 86428023 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 46.

The spelling of 55054637911 in words is "fifty-five billion, fifty-four million, six hundred thirty-seven thousand, nine hundred eleven".

Divisors: 1 7 13 49 91 637 86428003 604996021 1123564039 4234972147 7864948273 55054637911